Title :
Design of Efficient Class-E Power Amplifiers for Short-Distance Communications
Author :
Tan, Jun ; Heng, Chun-Huat ; Lian, Yong
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
This paper presents a new Class-E power amplifier (PA) with a π-matching output network. The PA is targeted at low output power wireless applications. Analytical formulae are derived to aid the PA design, characterization and optimization. A fully integrated 2.4-GHz PA for short distance communications has been implemented in 0.13 μm CMOS technology to verify the proposed design method. The measured output power levels vary from - 3.2 to 5.7 dBm while achieving maximum overall efficiency of 55%.
Keywords :
CMOS integrated circuits; low-power electronics; power amplifiers; π-matching output network; CMOS technology; class-E power amplifiers; efficiency 55 percent; frequency 2.4 GHz; low output power wireless applications; short-distance communications; size 0.13 mum; Equations; Harmonic analysis; Inductors; Mathematical model; Power amplifiers; Power generation; Switches; Circuit theory; class-E; efficiency; low-power; nonlinear circuits; power amplifier;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2012.2188951
